Here is my problem. 1.) I think I can do anything. 2.) I screwed up big!
I bought a new tstat and installed it. Went from dial to honeywell digital so I could program. Things have been working great. My problem is that my electric bill shot up 6x. Yikes!! I narrowed it down to the A/C. When I turn on the A/C the electric flies on the meter. I hooked everything up like it says and don't want to burn the house down, or worse kill myself.
Can you help me with just this much info? Dial had three wires hooked up. I hooked up 5 wires with a jumper to the new one according to instructions.
Help it is 90+ degrees in my home and the dogs can't take it anymore!!
Thanks,
JaneBond

acetc

Can you describe the type of system that you have and where the three wires were connected and where you connected the five wires and did you connect five wires also at the furnace or air handler?

JaneBond

First, it's not a Honeywell, it's a RiteTemp.
I figured out white is common.
Coming out from the wall, I have red, white, green and yellow that were attached to old tstat.
Other wires coming out of wall orange, blue, brown and black not used.

Heater 24 volt common is white. Another white, yellow, red and green.
The ac is white and red.

I got rid of the old tstat.

Available connections on the WhiteTemp model 8050C, sku 783-137, are C, W2, RC, O, B, RH, W, Y, G, A.
I connected 4 wires red, yellow, white and green on the new tstat. I had the jumper from RH to RC. Wall wire going into RH.

Air handler is a carrier.
Model for ac unit 38CKC018330

If you need more info, write me back. Thank you for the help you've given me.
JaneBond

acetc

The standard way to wire the stat is red to "R" yellow to "Y" green to "G" white to "W" with a jumper from RH to RC and the red to either . Now if some one has used the white wire in place of the red wire then you must varify this by going to the furnace and looking at where these wires are connected , they should be the same here. Since you do not have a common wire at the thermostat then you can go ahead and wire it the way i detailed and see if it works. The red and white wires will connect to the yellow from the thermostat and the transformer . The red wire connects to one terminal on the transformer and then to the thermostat, the white wire to the out door unit will connect to the other terminal on the transformer, then the red wire going to the outdoor unit connected to the yellow wire from the thermostat.
Look for a switch in the subbase of the thermostat that is marked "GAS' and "ELEC." if it has this then it should be on "GAS"

acetc

The new thermostat that you have is for either a gas furnace with electric air conditioning or a heat pump . That said it might have to be told what type system you have , some times it is posible to bring on the heating and air conditioning at the same time if it is not set up properly, that is why i advised you to look for the switch marked "GAS" or "ELEC" this tells it what type system you have , some thermostats are told this during the advanced setup of the thermostat and don't have this switch. Good luck.

wmproop

you may have your heat and a/c running at the same time,,,,has happened before